CN205564960U - High performance tag antenna - Google Patents
High performance tag antenna Download PDFInfo
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- CN205564960U CN205564960U CN201620269981.4U CN201620269981U CN205564960U CN 205564960 U CN205564960 U CN 205564960U CN 201620269981 U CN201620269981 U CN 201620269981U CN 205564960 U CN205564960 U CN 205564960U
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- antenna
- label
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- performance
- label chip
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Abstract
The utility model discloses a high performance tag antenna, including the antenna body, the middle part of antenna body is provided with the label chip, the upper and lower both sides of label chip are being close to the position department symmetry of label chip is offered and is used for realizing that the first matching of the impedance phase matching between antenna end mouth and the chip port is regional, is keeping away from the left and right sides of label chip the position department symmetry of label chip is offered and is used for realizing that the second that the impedance phase between antenna end mouth and the chip port matees regionally. The utility model discloses a tag antenna is when using, and no matter the label back has or not the metal, can both reach the optimum matching between antenna and the label chip, has good antimetal performance.
Description
Technical field
This utility model relates to a kind of high-performance label antenna.
Background technology
At present, REID (Radio Frequency Identification, RFID) is a kind of contactless
Automatic identification technology, it utilizes radiofrequency signal to pass through what Space Coupling (alternating magnetic field) transmission information passing through was transmitted
Information reaches automatically to identify the purpose of object, identifies that work, without manual intervention, can be operated in various adverse circumstances.RFID skill
Art can recognize that high-speed moving object and can identify multiple label simultaneously, easy to operate quick again it is considered to be 21 century ten
One of big important technology, the fields such as Smart Home, supply chain management, logistics trade, public safety have wide before
Scape.
In recent years, in intelligent transportation field, REID (RFID) is used for the automotive electronics mark of automobile management
Label system causes the extensive attention of people.Its operation principle is to utilize wireless radiofrequency electric wave to automobile recognition, has
Little, recognition speed affected by environment is fast, discrimination advantages of higher.
Automotive electronics label is typically mounted on shield glass, it is generally the case that this label can be normally by road surface
Detection equipment Inspection is arrived, but when using the material such as aluminium foil, Copper Foil that the electronic tag back side is covered, pavement detection
Equipment just cannot normally detect, this is because electronic tag is when near metal surface, and its performance meeting degradation, no
Method molecule may use back to press close to the means such as metal and make the hydraulic performance decline of label, it is impossible to is read by road surface equipment, leads
The information causing vehicle cannot be recorded, thus realize fee evasion or escape monitoring.
The existing electronic tag being pasted onto windshield is dipole antenna, does not has the objects such as metal when sign perimeter
Time, functional；But when using metal or palm to be close to label back, road surface equipment cannot read mark substantially
The information signed.
Someone uses the formal solution award of bid label nearly thing interference problems such as microstrip antenna, and nearly thing disturbs and disturbs without nearly thing, label
Performance is the most similar.But poor performance is the most when this kind disturbs without nearly thing than existing electronic tag.Namely solve
The special circumstances of application, but make ordinary circumstance be deteriorated.And the microstrip antenna gain of standard card size is relatively low, it is impossible to meet
The requirement used；Microstrip antenna processing technology makes it cannot solve the application such as the tamper of electronic tag for vehicles, and this all makes
This kind of mode is abandoned substantially.
Problem in sum is that existing label antenna cannot be in two kinds of different application scenes, i.e. there are metal and back in back
In the case of metal, performance is the best.When industry is without metal to the demand that electronic tag for vehicles is basic, tag performance
Well, all of performance requirement is met；When having metal, it is possible to by road surface equipment Inspection to.
Summary of the invention
This utility model purpose is that the defect existed for prior art provides a kind of high-performance label antenna.
This utility model for achieving the above object, adopts the following technical scheme that a kind of high-performance label antenna, including antenna
Body, the middle part of described antenna body is provided with label chip, and the both sides up and down of described label chip are near described label
The position symmetry of chip offers the first Matching band for realizing the matches impedances between antenna port and chip port
Territory；The left and right sides of described label chip offers for realizing antenna end in the position symmetry away from described label chip
Second matching area of the matches impedances between mouth and chip port.
Further, described first matching area is the adjustable rectangle of area, triangle or the hatch frame of circle.
Further, described second matching area is the adjustable rectangle of area, triangle or the hatch frame of circle.
Further, the impedance of described label chip is the impedance of plural form.
Further, described label chip employing binding or the form of welding and antenna body are fixed and are connected.
Further, described antenna body is made by conductive metallic material.
The beneficial effects of the utility model:
1, no matter label back is with or without metal, is attained by most preferably mating between antenna with label chip, has excellent resisting
Metallicity.
2, have metal different from the position without metal situation regulation antenna match, and substantially without the another kind of situation of impact
Join, be therefore easy to design regulation.
3, low cost, will not change the structure of original label.
4, the impedance variation of the antenna brought by the size regulating the first matching area or the second matching area will present line
Property change, therefore easily find the point of the design requirement that coincide so that antenna adjustments is simple and convenient.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model.
Detailed description of the invention
Shown in Fig. 1, relating to a kind of high-performance label antenna, including antenna body 1, the middle part of described antenna body 1 is arranged
Having label chip 2, the both sides up and down of described label chip 2 offer use in the position symmetry near described label chip 2
The first matching area 3 in the matches impedances realized between antenna port and chip port；The left and right of described label chip 2
Both sides offer the resistance for realizing between antenna port and chip port in the position symmetry away from described label chip 2
Anti-the second matching area 4 matched.
During design, by the size of the first matching area 3 on regulation antenna so that label antenna does not has metal to do at back
In the case of disturbing, the impedance that can realize between antenna port and chip port is most preferably mated, and reaches performance optimal.Preferably
Scheme is, described first matching area 3 is designed to the adjustable rectangle of area, triangle or the hatch frame of circle.
By the size of the second matching area 4 on regulation antenna so that label antenna in the case of there is metal interference at back,
The impedance that can realize between antenna port and chip port is most preferably mated, and reaches performance optimal.Preferably scheme is by described
Second matching area 4 is designed to the adjustable rectangle of area, triangle or the hatch frame of circle.
It addition, in the design of antenna, the impedance of described label chip 2 uses the impedance of plural form.Label chip 2
The form using binding or welding is fixed with antenna body 1 and is connected.And described antenna body 1 is preferably by conducting metal
Material is made.
Its operation principle is: when the back of label chip 2 does not has metal to disturb, the of regulation label chip 2 upper and lower sides
The size of one matching area 3, it is possible to the real part of the linear impedance changing antenna feed end and imaginary part, thus realize antenna
Coupling between port and chip port, reaches best performance.
When the back of label chip 2 has metal to disturb, when particularly label chip is close to the objects such as metallic plate, label core
Region around sheet 2 has been to be close to metal, due to the problem of the magnetic direction of metal surface, now regulates upper and lower sides
First matching area 3 size, the impedance of antenna is substantially without changing, but can be by regulating antenna left and right sides
The size of the second matching area 4, reaches to regulate the real part of antenna impedance and the purpose of imaginary part, thus realize antenna port and
Coupling between chip port, reaches best performance.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this utility model
Spirit and principle within, any modification, equivalent substitution and improvement etc. made, should be included in guarantor of the present utility model
Within the scope of protecting.
Claims (6)
1. a high-performance label antenna, it is characterised in that include that antenna body, the middle part of described antenna body are provided with
Label chip, the both sides up and down of described label chip offer for realizing in the position symmetry near described label chip
First matching area of the matches impedances between antenna port and chip port；The left and right sides of described label chip is far
Position symmetry from described label chip offers for realizing matches impedances between antenna port and chip port
Second matching area.
2. a kind of high-performance label antenna as claimed in claim 1, it is characterised in that described first matching area is face
Long-pending adjustable rectangle, triangle or the hatch frame of circle.
3. a kind of high-performance label antenna as claimed in claim 1, it is characterised in that described second matching area is face
Long-pending adjustable rectangle, triangle or the hatch frame of circle.
4. a kind of high-performance label antenna as claimed in claim 1, it is characterised in that the impedance of described label chip is
The impedance of plural form.
5. a kind of high-performance label antenna as claimed in claim 1, it is characterised in that described label chip uses binding
Or the form of welding is fixing with antenna body to be connected.
6. a kind of high-performance label antenna as claimed in claim 1, it is characterised in that described antenna body is by conductive gold
Belong to material to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620269981.4U CN205564960U (en) | 2016-04-01 | 2016-04-01 | High performance tag antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620269981.4U CN205564960U (en) | 2016-04-01 | 2016-04-01 | High performance tag antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205564960U true CN205564960U (en) | 2016-09-07 |
Family
ID=56812861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620269981.4U Active CN205564960U (en) | 2016-04-01 | 2016-04-01 | High performance tag antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205564960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680150A (en) * | 2016-04-01 | 2016-06-15 | 无锡键桥电子科技有限公司 | High-performance label antenna |
-
2016
- 2016-04-01 CN CN201620269981.4U patent/CN205564960U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680150A (en) * | 2016-04-01 | 2016-06-15 | 无锡键桥电子科技有限公司 | High-performance label antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |